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public LocationGreenwich, United Kingdom
Sunrise: 4:42 
Transit: 12:58 
Sunset: 21:15
sunny   (Daytime)   What's Visible Now?


Above the horizon.  Rise: 9:02 | Tran: 14:40 | Set: 20:19
Altitude: 30.4°   Azimuth: 149.7°   Direction: South-South-East

HR2731 is a double giant star of spectral class K5 in the constellation of Monoceros.

HR2731 visual magnitude is 5.75. Because of its faintness, HR2731 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Celestial coordinates and finder chart of HR2731

Finder chart HR2731 star
Simplified finder chart for HR2731.

HR2731 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR2731 are provided in the following table:

07h 14m 11s
-03° 54’ 05”
Image of HR2731 star
DSS2 image of HR2731. The red arrow shows the motion of HR2731 during the next 10000 years (-2.50 arcmin in Right Ascension and 1.17 arcmin in declination);

Key facts about HR2731


and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR2731 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR2731. Attribution: Richard Powell / CC BY-SA

HR2731 star system properties

HR2731 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR2731 double sysyem:

2.7 arcsec

Distance of HR2731 from the Sun and relative movement

HR2731 is distant 612.78 light years from the Sun and it is moving far from the Sun at the speed of 22 kilometers per second.

187.97 pc
612.78 ly
22 km/s
-0.015 arcsec/year
0.007 arcsec/year

Alternative designations of HR2731


Visibility of HR2731 from your location

Today's HR2731 rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):

Azimuth: 93.9°
Max altitude: 34.6°
Azimuth: 266.1°